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The light emitted by stars and accreting compact objects through the history of the universe is encoded in the intensity of the extragalactic background li... M Ackermann,M Ajello,A Allafort,... - 《Science》 被引量: 154发表: 2012年 Blazar Gamma-Rays, Shock Acceleration, and the Extragala...
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Light-field detection measures both the intensity of light rays and their precise direction in free space. However, current light-field detection techniques either require complex microlens arrays or are limited to the ultraviolet–visible light waveleng
摄图新视界>视频>抽象>Morning Light Rays 5 Loopable Background.mov % buffered00:00 00:00 00:10 1x 4x 2x 1.5x 1x 0.5x ID:00ob68 授权范围 商业用途,可用于营利性的商业、广告目的 授权限制 暂无 版权所有 摄图网已取得Depositphotos授权
Interestingly, when we illuminate the metalenses by rays with \({0.61k}_{0}\, <\, |{{k}_{{\rm{||}}}_{{\rm{i}}}|\, <\, 0.{67k}_{0}\), the focal spot for the “incoming” metalens turns into a ring and the “outgoing” metalens shows no clear focusing (Fig. 3b). ...
Video about Abstract blue background from rays of light in the dark and optical flares. Video of shiny, optical, sunshine - 268846429
Sun behind clouds with light rays background,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体等,已先后为阿里巴巴、京东、亚马逊、小米、联想、奥美、盛世长城、百度、360、招商银行、工商银行等数万家企